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Mima Y, Ohtsuka T, Ebato I, Nakazato Y, Norimatsu Y. A Case of Bullous Pemphigoid with Significant Infiltration of CD4-Positive T Cells during Treatment with Pembrolizumab, Accompanied by Pembrolizumab-Induced Multi-Organ Dysfunction. Diagnostics (Basel) 2024; 14:1958. [PMID: 39272742 PMCID: PMC11394162 DOI: 10.3390/diagnostics14171958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 09/02/2024] [Accepted: 09/03/2024] [Indexed: 09/15/2024] Open
Abstract
Immune checkpoint inhibitors (ICIs) activate T cells, causing immune-related adverse events (irAEs). Skin manifestations are common among irAEs, but ICI-associated bullous pemphigoid (BP) is rare. Inhibiting programmed death (PD)-1 signaling, in addition to causing epitope spreading, may disrupt B and T cell balance, causing excessive autoantibody production against the skin's basement membrane, leading to BP. A 70-year-old woman developed late-onset multi-organ irAEs, including diarrhea, thyroid dysfunction, and BP, while receiving pembrolizumab, a PD-1 inhibitor. This highlights the long-term risk of irAEs, which can occur 2-3 years after starting ICIs. In cases of multi-organ irAE, C-reactive protein levels and neutrophil/lymphocyte ratio are often low. These characteristics were observed in our case. Few papers address multiple organ involvement, highlighting the need to consider irAEs in a multi-organ context. While it is known that drug-induced skin reactions worsen as blood eosinophil counts increase, in our case, the eosinophil count remained normal, suggesting that ICI-associated BP might have been controlled without discontinuing the ICI and through tapering of low-dose oral prednisone treatment. Additionally, in this case, significant CD4-positive T cell infiltration was observed in the immunostaining examination of the blisters, indicating that severe CD4-positive T cell infiltration induced by the ICI might have led to multi-organ involvement, including severe diarrhea. Few reports focus on blood eosinophil counts in BP cases or discuss CD4 and CD8 immunostaining in BP cases. Therefore, future research should explore the relationship between blood eosinophil counts, immunostaining results, and the prognosis of irAEs, including BP, in treatment courses.
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Affiliation(s)
- Yoshihito Mima
- Department of Dermatology, Tokyo Metropolitan Police Hospital, Tokyo 164-8541, Japan
| | - Tsutomu Ohtsuka
- Department of Dermatology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Ippei Ebato
- Department of Dermatology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Yoshimasa Nakazato
- Department of Diagnostic Pathology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Yuta Norimatsu
- Department of Dermatology, International University of Health and Welfare Narita Hospital, Chiba 286-0124, Japan
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2
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Mima Y, Ohtsuka T, Ebato I, Nakata Y, Tsujita A, Nakazato Y, Norimatsu Y. Review of T Helper 2-Type Inflammatory Diseases Following Immune Checkpoint Inhibitor Treatment. Biomedicines 2024; 12:1886. [PMID: 39200350 PMCID: PMC11352049 DOI: 10.3390/biomedicines12081886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2024] [Revised: 08/14/2024] [Accepted: 08/15/2024] [Indexed: 09/02/2024] Open
Abstract
Immune checkpoints are mechanisms that allow cancer cells to evade immune surveillance and avoid destruction by the body's immune system. Tumor cells exploit immune checkpoint proteins to inhibit T cell activation, thus enhancing their resistance to immune attacks. Immune checkpoint inhibitors, like nivolumab, work by reactivating these suppressed T cells to target cancer cells. However, this reactivation can disrupt immune balance and cause immune-related adverse events. This report presents a rare case of prurigo nodularis that developed six months after administering nivolumab for lung adenocarcinoma. While immune-related adverse events are commonly linked to T helper-1- or T helper-17-type inflammations, T helper-2-type inflammatory reactions, as observed in our case, are unusual. The PD-1-PD-L1 pathway is typically associated with T helper-1 and 17 responses, whereas the PD-1-PD-L2 pathway is linked to T helper-2 responses. Inhibition of PD-1 can enhance PD-L1 functions, potentially shifting the immune response towards T helper-1 and 17 types, but it may also influence T helper-2-type inflammation. This study reviews T helper-2-type inflammatory diseases emerging from immune checkpoint inhibitor treatment, highlighting the novelty of our findings.
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Affiliation(s)
- Yoshihito Mima
- Department of Dermatology, Tokyo Metropolitan Police Hospital, Tokyo 164-8541, Japan
| | - Tsutomu Ohtsuka
- Department of Dermatology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Ippei Ebato
- Department of Dermatology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Yukihiro Nakata
- Department of Dermatology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Akihiro Tsujita
- Department of Respiratory Medicine, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Yoshimasa Nakazato
- Department of Diagnostic Pathology, International University of Health and Welfare Hospital, Tochigi 324-8501, Japan
| | - Yuta Norimatsu
- Department of Dermatology, International University of Health and Welfare Narita Hospital, Chiba 286-0124, Japan;
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Kamal K, Richardsdotter‐Andersson E, Dondalska A, Wahren‐Herlenius M, Spetz A. A Non-Coding Oligonucleotide Recruits Cutaneous CD11b + Cells that Inhibit Thelper Responses and Promote Tregs. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400260. [PMID: 38896803 PMCID: PMC11336929 DOI: 10.1002/advs.202400260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 06/04/2024] [Indexed: 06/21/2024]
Abstract
Skin-resident antigen-presenting cells (APC) play an important role in maintaining peripheral tolerance via immune checkpoint proteins and induction of T regulatory cells (Tregs). However, there is a lack of knowledge on how to expand or recruit immunoregulatory cutaneous cells without causing inflammation. Here, it is shown that administration of a non-coding single-stranded oligonucleotide (ssON) leads to CCR2-dependent accumulation of CD45+CD11b+Ly6C+ cells in the skin that express substantial levels of PD-L1 and ILT3. Transcriptomic analyses of skin biopsies reveal the upregulation of key immunosuppressive genes after ssON administration. Functionally, the cutaneous CD11b+ cells inhibit Th1/2/9 responses and promote the induction of CD4+FoxP3+ T-cells. In addition, ssON treatment of imiquimod-induced inflammation results in significantly reduced Th17 responses. It is also shown that induction of IL-10 production in the presence of cutaneous CD11b+ cells isolated after ssON administrations is partly PD-L1 dependent. Altogether, an immunomodulatory ssON is identified that can be used therapeutically to recruit cutaneous CD11b+ cells with the capacity to dampen Th cells.
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Affiliation(s)
- Kahkashan Kamal
- Department of Molecular BiosciencesThe Wenner‐Gren InstituteStockholm UniversitySvante Arrhenius väg 20CStockholmSE‐106 91Sweden
| | | | - Aleksandra Dondalska
- Department of Molecular BiosciencesThe Wenner‐Gren InstituteStockholm UniversitySvante Arrhenius väg 20CStockholmSE‐106 91Sweden
| | - Marie Wahren‐Herlenius
- Department of MedicineKarolinska University HospitalKarolinska InstitutetVisionsgatan 18, L8SolnaSE‐171 76Sweden
| | - Anna‐Lena Spetz
- Department of Molecular BiosciencesThe Wenner‐Gren InstituteStockholm UniversitySvante Arrhenius väg 20CStockholmSE‐106 91Sweden
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4
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Schettini N, Pacetti L, Corazza M, Borghi A. The Role of OX40-OX40L Axis in the Pathogenesis of Atopic Dermatitis. Dermatitis 2024. [PMID: 38700255 DOI: 10.1089/derm.2024.0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
OX40 is a co-stimulatory immune checkpoint molecule that promotes the activation and the effector function of T lymphocytes through interaction with its ligand (OX40L) on antigen-presenting cells. OX40-OX40L axis plays a crucial role in Th1 and Th2 cell expansion, particularly during the late phases or long-lasting response. Atopic dermatitis is characterized by an immune dysregulation of Th2 activity and by an overproduction of proinflammatory cytokines such as interleukin (IL)-4 and IL-13. Other molecules involved in its pathogenesis include thymic stromal lymphopoietin, IL-33, and IL-25, which contribute to the promotion of OX40L expression on dendritic cells. Lesional skin in atopic dermatitis exhibits a higher level of OX40L+-presenting cells compared with other dermatologic diseases or normal skin. Recent clinical trials using antagonizing anti-OX40 or anti-OX40L antibodies have shown symptom improvement and cutaneous manifestation alleviation in patients with atopic dermatitis. These findings suggest the relevance of the OX40-OX40L axis in atopic dermatitis pathogenesis.
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Affiliation(s)
- Natale Schettini
- From the Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Lucrezia Pacetti
- From the Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Monica Corazza
- From the Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Alessandro Borghi
- From the Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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Chagan-Yasutan H, He N, Arlud S, Fang J, Hattori T. The elevation of plasma galectin-9 levels in patients with psoriasis and its associations with inflammatory and immune checkpoint molecules in skin tissues. Hum Immunol 2024; 85:110741. [PMID: 38092632 DOI: 10.1016/j.humimm.2023.110741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 01/24/2024]
Abstract
Psoriasis is a chronic, immune-mediated disorder that mainly affects the skin, with an estimated global prevalence of 2-3%. Galectin-9 (Gal-9) is a β-galactoside-binding lectin capable of promoting or suppressing the progression of infectious and immune-mediated diseases. Here, we determined if the expression of Gal-9 is observed in psoriasis. Gal-9 levels were measured in plasma of psoriasis (n = 62) and healthy control (HC) (n = 31) using an enzyme-linked immunosorbent assay. In addition, skin samples from seven patients were screened for RNA transcriptomes and the expression of Gal-9 was compared with inflammatory, immune checkpoint molecules (ICMs) and Foxp3. The plasma Gal-9 levels in patients with psoriasis were significantly higher (841 pg/mL) than in HCs (617 pg/mL) (P < 0.0001) and were associated with white blood cell numbers, eosinophils (%) and alanine transaminase. The levels of inflammatory molecules IL-36B, IL-17RA, IL-6R, IL-10, IRF8, TGFb1, and IL-37, and those of ICMs of Tim-3, CTLA-4, CD86, CD80, PD-1LG2, CLEC4G, and Foxp3 were significantly correlated with Gal-9 (LGALS9) in skin. However, HMGB1, CD44, CEACAM1 and PDL1-known to be associated with a variety of Gal-9 biological functions were not correlated with LGALS9. Thus, it is likely that Gal-9 expression affects the disease state of PS.
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Affiliation(s)
- Haorile Chagan-Yasutan
- Mongolian Psychosomatic Medicine Department, Inner Mongolia International Mongolian Medicine Hospital, Hohhot 010065, China; Research Institute of Health and Welfare, Kibi International University, 8-Iga-machi, Takahashi, Okayama 716-8508, Japan.
| | - Nagongbilige He
- Mongolian Psychosomatic Medicine Department, Inner Mongolia International Mongolian Medicine Hospital, Hohhot 010065, China; The Inner Mongolia Institute of Chinese and Mongolian Medicine, Hohhot 010010, China.
| | - Sarnai Arlud
- Mongolian Psychosomatic Medicine Department, Inner Mongolia International Mongolian Medicine Hospital, Hohhot 010065, China
| | - Jun Fang
- Mongolian Psychosomatic Medicine Department, Inner Mongolia International Mongolian Medicine Hospital, Hohhot 010065, China; The Inner Mongolia Institute of Chinese and Mongolian Medicine, Hohhot 010010, China
| | - Toshio Hattori
- Research Institute of Health and Welfare, Kibi International University, 8-Iga-machi, Takahashi, Okayama 716-8508, Japan; Shizuoka Graduate University of Public Health, 4-27-2 Kita Ando Aoi-ku, Shizuoka City 420-0881, Japan.
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6
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Hashimoto M, Tamura A, Hosoi A, Hojo M. A case of eosinophilic bronchiolitis after the initiation of immune checkpoint inhibitor. Thorac Cancer 2023. [PMID: 37201911 DOI: 10.1111/1759-7714.14931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/20/2023] Open
Abstract
A 50-year-old Japanese woman with advanced breast cancer presented with productive cough and dyspnea while she was receiving a sixth cycle of chemotherapy including atezolizumab. Chest computed tomography revealed bronchiolitis and transbronchial lung cryobiopsy revealed eosinophilic bronchiolitis. Corticosteroid therapy successfully resolved her symptoms. Eosinophilic bronchiolitis is a rare but important immune-related adverse event; herein, we discuss its diagnosis and possible pathophysiology.
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Affiliation(s)
- Masao Hashimoto
- National Center for Global Health and Medicine Hospital, Respiratory Medicine, Tokyo, Japan
| | - Akiko Tamura
- National Center for Global Health and Medicine Hospital, Respiratory Medicine, Tokyo, Japan
| | - Atsuko Hosoi
- National Center for Global Health and Medicine Hospital, Pathology, Tokyo, Japan
| | - Masayuki Hojo
- National Center for Global Health and Medicine Hospital, Respiratory Medicine, Tokyo, Japan
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Chen RY, Zhu Y, Shen YY, Xu QY, Tang HY, Cui NX, Jiang L, Dai XM, Chen WQ, Lin Q, Li XZ. The role of PD-1 signaling in health and immune-related diseases. Front Immunol 2023; 14:1163633. [PMID: 37261359 PMCID: PMC10228652 DOI: 10.3389/fimmu.2023.1163633] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/02/2023] [Indexed: 06/02/2023] Open
Abstract
Programmed cell death 1 receptor (PD-1) and its ligands constitute an inhibitory pathway to mediate the mechanism of immune tolerance and provide immune homeostasis. Significantly, the binding partners of PD-1 and its associated ligands are diverse, which facilitates immunosuppression in cooperation with other immune checkpoint proteins. Accumulating evidence has demonstrated the important immunosuppressive role of the PD-1 axis in the tumor microenvironment and in autoimmune diseases. In addition, PD-1 blockades have been approved to treat various cancers, including solid tumors and hematological malignancies. Here, we provide a comprehensive review of the PD-1 pathway, focusing on the structure and expression of PD-1, programmed cell death 1 ligand 1 (PD-L1), and programmed cell death 1 ligand 2 (PD-L2); the diverse biological functions of PD-1 signaling in health and immune-related diseases (including tumor immunity, autoimmunity, infectious immunity, transplantation immunity, allergy and immune privilege); and immune-related adverse events related to PD-1 and PD-L1 inhibitors.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Qiang Lin
- *Correspondence: Qiang Lin, ; Xiao-Zhong Li,
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8
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Zheng C, Shi Y, Zou Y. T cell co-stimulatory and co-inhibitory pathways in atopic dermatitis. Front Immunol 2023; 14:1081999. [PMID: 36993982 PMCID: PMC10040887 DOI: 10.3389/fimmu.2023.1081999] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/28/2023] [Indexed: 03/14/2023] Open
Abstract
The use of immune checkpoint inhibitors (ICIs) targeting the T cell inhibitory pathways has revolutionized cancer treatment. However, ICIs might induce progressive atopic dermatitis (AD) by affecting T cell reactivation. The critical role of T cells in AD pathogenesis is widely known. T cell co-signaling pathways regulate T cell activation, where co-signaling molecules are essential for determining the magnitude of the T cell response to antigens. Given the increasing use of ICIs in cancer treatment, a timely overview of the role of T cell co-signaling molecules in AD is required. In this review, we emphasize the importance of these molecules involved in AD pathogenesis. We also discuss the potential of targeting T cell co-signaling pathways to treat AD and present the unresolved issues and existing limitations. A better understanding of the T cell co-signaling pathways would aid investigation of the mechanism, prognosis evaluation, and treatment of AD.
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Affiliation(s)
- Chunjiao Zheng
- Skin and Cosmetic Research Department, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuling Shi
- Institute of Psoriasis, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Yuling Shi, ; Ying Zou,
| | - Ying Zou
- Skin and Cosmetic Research Department, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Yuling Shi, ; Ying Zou,
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9
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Watanabe T, Yamaguchi Y. Cutaneous manifestations associated with immune checkpoint inhibitors. Front Immunol 2023; 14:1071983. [PMID: 36891313 PMCID: PMC9986601 DOI: 10.3389/fimmu.2023.1071983] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) are monoclonal antibodies that block key mediators of tumor-mediated immune evasion. The frequency of its use has increased rapidly and has extended to numerous cancers. ICIs target immune checkpoint molecules, such as programmed cell death protein 1 (PD-1), PD ligand 1 (PD-L1), and T cell activation, including cytotoxic T-lymphocyte-associated protein-4 (CTLA-4). However, ICI-driven alterations in the immune system can induce various immune-related adverse events (irAEs) that affect multiple organs. Among these, cutaneous irAEs are the most common and often the first to develop. Skin manifestations are characterized by a wide range of phenotypes, including maculopapular rash, psoriasiform eruption, lichen planus-like eruption, pruritus, vitiligo-like depigmentation, bullous diseases, alopecia, and Stevens-Johnson syndrome/toxic epidermal necrolysis. In terms of pathogenesis, the mechanism of cutaneous irAEs remains unclear. Still, several hypotheses have been proposed, including activation of T cells against common antigens in normal tissues and tumor cells, increased release of proinflammatory cytokines associated with immune-related effects in specific tissues/organs, association with specific human leukocyte antigen variants and organ-specific irAEs, and acceleration of concurrent medication-induced drug eruptions. Based on recent literature, this review provides an overview of each ICI-induced skin manifestation and epidemiology and focuses on the mechanisms underlying cutaneous irAEs.
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Affiliation(s)
| | - Yukie Yamaguchi
- Department of Environmental Immuno-Dermatology, Yokohama City University School of Medicine, Yokohama, Japan
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10
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Tanaka R, Ichimura Y, Kubota N, Konishi R, Nakamura Y, Mizuno S, Takahashi S, Fujimoto M, Nomura T, Okiyama N. The Role of PD-L1 on Langerhans Cells in the Regulation of Psoriasis. J Invest Dermatol 2022; 142:3167-3174.e9. [PMID: 35803322 DOI: 10.1016/j.jid.2022.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 05/31/2022] [Accepted: 06/07/2022] [Indexed: 01/05/2023]
Abstract
Langerhans cells (LCs) are skin-resident cells with potent antigen-presenting cell capabilities, which reportedly play some roles in the development of psoriasis, an inflammatory skin disease mediated by IL-17A‒producing cells, T helper 17 cells, and TCR-γδlow T cells. LCs in psoriatic skin lesions but not in normal skin express PD-L1, which binds to PD-1, an immune checkpoint molecule, to negatively regulate immune reactions. The aim of this study is to elucidate the regulatory role of LCs through the PD-1/PD-L1 axis in a murine model of imiquimod-induced psoriasis-like dermatitis. Imiquimod application on wild-type C57BL/6J mice induced PD-L1 expression on LCs both in the ear skin and skin-draining lymph nodes. To further identify the functional role of PD-L1 expressed on LCs, we generated conditional knockout mice lacking PD-L1 expression on LCs (Pd-l1-cKO mice). Pd-l1-cKO mice presented significantly more severe imiquimod-induced psoriasis-like dermatitis than their control littermates. Flow cytometric analysis showed that the frequency of activated IL-17A‒producing γδlow T cells was increased in the ear skin samples, and IL-17A production by CCR6+ migrating γδlow T cells increased in the skin-draining lymph nodes in imiquimod-applied Pd-l1-cKO mice than in control littermates. Collectively, LCs disrupt the exacerbation of psoriasis through PD-L1.
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Affiliation(s)
- Ryota Tanaka
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuki Ichimura
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriko Kubota
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Risa Konishi
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yoshiyuki Nakamura
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Dermatology, Graduate School of Medicine, Faculty of Medicine, Osaka University, Suita, Japan
| | - Toshifumi Nomura
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Naoko Okiyama
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; Department of Dermatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
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11
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Okiyama N, Tanaka R. Immune-related adverse events in various organs caused by immune checkpoint inhibitors. Allergol Int 2022; 71:169-178. [PMID: 35101349 DOI: 10.1016/j.alit.2022.01.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Indexed: 02/08/2023] Open
Abstract
Current cancer immunotherapies target immune checkpoint molecules such as the inhibitory receptor programmed cell death-1 (PD-1), one of its ligands, programmed cell death ligand-1 (PD-L1), and cytotoxic T-lymphocyte antigen 4 (CTLA-4), a competitive ligand for CD28 binding to stimulatory receptors CD80 and CD86. Multiple biological drugs use monoclonal antibodies targeting PD-1, PD-L1 and CTLA-4 as cancer immunotherapies. These are termed immune checkpoint inhibitors (ICIs). However, activation of the immune system by ICIs can induce the development of immune-related adverse events (irAEs), which can affect multiple organ systems. The most frequent irAEs are cutaneous and mimic various types of spontaneous skin disorders. Most irAEs are classified as autoimmune conditions mediated by ICI-activated CD8+ cytotoxic T cells, some of which are also related to activated B cells and production of pathogenic antibodies. Interestingly, blockade of CTLA-4 mainly induces activation of T cells and inhibition of Treg cells. On the other hand, the mechanisms underlying anti-PD-1/PD-L1 ICI-induced irAEs are more complicated. PD-1 is a receptor expressed on T and B cells, which binds not only PD-L1, but also PD-L2. The role of PD-L1 is dominant in Th1 and Th17 immunity, while PD-L2 works mainly in Th2 immunity. Better understanding of the mechanisms underlying irAEs will allow for better management of irAEs and improve outcomes and quality of life in cancer patients.
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12
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Sumitomo R, Huang CL, Fujita M, Cho H, Date H. Differential expression of PD‑L1 and PD‑L2 is associated with the tumor microenvironment of TILs and M2 TAMs and tumor differentiation in non‑small cell lung cancer. Oncol Rep 2022; 47:73. [PMID: 35169863 PMCID: PMC8867258 DOI: 10.3892/or.2022.8284] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 02/01/2022] [Indexed: 11/18/2022] Open
Abstract
To improve the treatment strategy of immune-checkpoint inhibitors for non-small cell lung cancer (NSCLC), a comprehensive analysis of programmed death-ligand (PD-L)1 and PD-L2 expression is clinically important. The expression of PD-L1 and PD-L2 on both tumor cells (TCs) and tumor-infiltrating immune cells (ICs) was investigated, with respect to tumor-infiltrating lymphocytes (TILs) and M2 tumor-associated macrophages (TAMs), which are key components of the tumor microenvironment, in 175 patients with resected NSCLC. The TIL and M2 TAM densities were associated with the expression of PD-L1 on the two TCs (both P<0.0001) and ICs (both P<0.0001). The TIL and M2 TAM densities were also associated with the expression of PD-L2 on both TCs (P=0.0494 and P=0.0452, respectively) and ICs (P=0.0048 and P=0.0125, respectively). However, there was no correlation between the percentage of PD-L1-positive TCs and the percentage of PD-L2-positive TCs (r=0.019; P=0.8049). Meanwhile, tumor differentiation was significantly associated with the PD-L1 expression on TCs and ICs (P=0.0002 and P<0.0001, respectively). By contrast, tumor differentiation was inversely associated with the PD-L2 expression on both TCs and ICs (P=0.0260 and P=0.0326, respectively). In conclusion, the combined evaluation of PD-L1 and PD-L2 expression could be clinically important in the treatment strategy of immune-checkpoint inhibitors in patients with NSCLC. In particular, the evaluation of PD-L2 expression may be necessary for patients with PD-L1-negative NSCLC.
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Affiliation(s)
- Ryota Sumitomo
- Department of Thoracic Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Kita‑ku, Osaka 530‑8480, Japan
| | - Cheng-Long Huang
- Department of Thoracic Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Kita‑ku, Osaka 530‑8480, Japan
| | - Masaaki Fujita
- Department of Oncology, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Kita‑ku, Osaka 530‑8480, Japan
| | - Hiroyuki Cho
- Department of Thoracic Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Kita‑ku, Osaka 530‑8480, Japan
| | - Hiroshi Date
- Department of Thoracic Surgery, Faculty of Medicine, Kyoto University, Shogoin, Sakyo‑ku, Kyoto 606‑8507, Japan
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13
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Gao L, Zhang L, Wang HL, Tian XQ, Liu WL, Hao Y. Identification of immune-related genes in atopic dermatitis, contact dermatitis, and psoriasis: A bioinformatics analysis. DERMATOL SIN 2022. [DOI: 10.4103/ds.ds_26_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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New Insights into the Role of PD-1 and Its Ligands in Allergic Disease. Int J Mol Sci 2021; 22:ijms222111898. [PMID: 34769327 PMCID: PMC8584538 DOI: 10.3390/ijms222111898] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 12/15/2022] Open
Abstract
Programmed cell death 1 (PD-1) and its ligands PD-L1 and PD-L2 are receptors that act in co-stimulatory and coinhibitory immune responses. Signaling the PD-1/PD-L1 or PD-L2 pathway is essential to regulate the inflammatory responses to infections, autoimmunity, and allergies, and it has been extensively studied in cancer. Allergic diseases include asthma, rhinoconjunctivitis, atopic dermatitis, drug allergy, and anaphylaxis. These overactive immune responses involve IgE-dependent activation and increased CD4+ T helper type 2 (Th2) lymphocytes. Recent studies have shown that PD-L1 and PD-L2 act to regulate T-cell activation and function. However, the main role of PD-1 and its ligands is to balance the immune response; however, the inflammatory process of allergic diseases is poorly understood. These immune checkpoint molecules can function as a brake or a kick-start to regulate the adaptive immune response. These findings suggest that PD-1 and its ligands may be a key factor in studying the exaggerated response in hypersensitivity reactions in allergies. This review summarizes the current understanding of the role of PD-1 and PD-L1 and PD-L2 pathway regulation in allergic diseases and how this immunomodulatory pathway is currently being targeted to develop novel therapeutic immunotherapy.
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